diff options
author | Stephen Dolan <mu@netsoc.tcd.ie> | 2013-05-29 03:38:15 -0700 |
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committer | Stephen Dolan <mu@netsoc.tcd.ie> | 2013-05-29 03:38:15 -0700 |
commit | dcf1ac0d1f7d102ee583d029bf88aec7c83d7f35 (patch) | |
tree | ebb25fae2586ac8b82f157b15054179a4be77bd3 | |
parent | 364c58d13f370b8b3626066156105a567c625665 (diff) | |
parent | 8cfe11e4e25e2149aba68bb77335024cc84999a5 (diff) |
Merge pull request #135 from 13ren/locfile_bugfix
Locfile bugfix
-rw-r--r-- | Makefile.am | 4 | ||||
-rw-r--r-- | locfile.c | 65 | ||||
-rw-r--r-- | locfile.h | 64 | ||||
-rw-r--r-- | main.c | 1 |
4 files changed, 72 insertions, 62 deletions
diff --git a/Makefile.am b/Makefile.am index 23e9d253..a4d5cd1b 100644 --- a/Makefile.am +++ b/Makefile.am @@ -5,7 +5,7 @@ JQ_INCS = jq_parser.h builtin.h bytecode.h compile.h execute.h \ jv_parse.h jv_unicode.h locfile.h opcode.h opcode_list.h parser.y \ jv_utf8_tables.h lexer.l -JQ_SRC = opcode.c bytecode.c compile.c execute.c builtin.c jv.c \ +JQ_SRC = locfile.c opcode.c bytecode.c compile.c execute.c builtin.c jv.c \ jv_parse.c jv_print.c jv_dtoa.c jv_unicode.c jv_aux.c jv_alloc.c \ jq_test.c ${JQ_INCS} @@ -123,4 +123,4 @@ if ENABLE_DOCS # 'make clean' doesn't delete the manpage if it can't be rebuilt clean-local: rm -f jq.1 -endif
\ No newline at end of file +endif diff --git a/locfile.c b/locfile.c new file mode 100644 index 00000000..f1f17d0f --- /dev/null +++ b/locfile.c @@ -0,0 +1,65 @@ +#include <stdlib.h> +#include <stdio.h> +#include <assert.h> +#include <stdarg.h> +#include "jv_alloc.h" +#include "locfile.h" + + +void locfile_init(struct locfile* l, const char* data, int length) { + l->data = data; + l->length = length; + l->nlines = 1; + for (int i=0; i<length; i++) { + if (data[i] == '\n') l->nlines++; + } + l->linemap = jv_mem_alloc(sizeof(int) * (l->nlines + 1)); + l->linemap[0] = 0; + int line = 1; + for (int i=0; i<length; i++) { + if (data[i] == '\n') { + l->linemap[line] = i+1; // at start of line, not of \n + line++; + } + } + l->linemap[l->nlines] = length+1; // virtual last \n +} + +void locfile_free(struct locfile* l) { + jv_mem_free(l->linemap); +} + +static int locfile_get_line(struct locfile* l, int pos) { + assert(pos < l->length); + int line = 1; + while (l->linemap[line] <= pos) line++; // == if pos at start (before, never ==, because pos never on \n) + assert(line-1 < l->nlines); + return line-1; +} + +static int locfile_line_length(struct locfile* l, int line) { + assert(line < l->nlines); + return l->linemap[line+1] - l->linemap[line] -1; // -1 to omit \n +} + +void locfile_locate(struct locfile* l, location loc, const char* fmt, ...) { + va_list fmtargs; + va_start(fmtargs, fmt); + vfprintf(stderr, fmt, fmtargs); + va_end(fmtargs); + fprintf(stderr, "\n"); + if (loc.start == -1) { + fprintf(stderr, "<unknown location>\n"); + return; + } + int startline = locfile_get_line(l, loc.start); + int offset = l->linemap[startline]; + fprintf(stderr, "%.*s\n", locfile_line_length(l, startline), l->data + offset); + fprintf(stderr, "%*s", loc.start - offset, ""); + for (int i = loc.start; + i < loc.end && i < offset + locfile_line_length(l, startline); + i++){ + fprintf(stderr, "^"); + } + fprintf(stderr, "\n"); +} @@ -1,10 +1,6 @@ #ifndef _LOCFILE_H #define _LOCFILE_H -#include <stdlib.h> -#include <stdio.h> -#include <assert.h> -#include <stdarg.h> -#include "jv_alloc.h" + typedef struct { int start, end; } location; @@ -18,62 +14,10 @@ struct locfile { int nlines; }; -static void locfile_init(struct locfile* l, const char* data, int length) { - l->data = data; - l->length = length; - l->nlines = 1; - for (int i=0; i<length; i++) { - if (data[i] == '\n') l->nlines++; - } - l->linemap = jv_mem_alloc(sizeof(int) * (l->nlines + 1)); - l->linemap[0] = 0; - int line = 1; - for (int i=0; i<length; i++) { - if (data[i] == '\n') { - l->linemap[line] = i; - line++; - } - } - l->linemap[l->nlines] = length; -} - -static void locfile_free(struct locfile* l) { - jv_mem_free(l->linemap); -} - -static int locfile_get_line(struct locfile* l, int pos) { - assert(pos < l->length); - int line = 0; - while (l->linemap[line+1] < pos) line++; - assert(line < l->nlines); - return line; -} +void locfile_init(struct locfile* l, const char* data, int length); -static int locfile_line_length(struct locfile* l, int line) { - assert(line < l->nlines); - return l->linemap[line+1] - l->linemap[line]; -} +void locfile_free(struct locfile* l); -static void locfile_locate(struct locfile* l, location loc, const char* fmt, ...) { - va_list fmtargs; - va_start(fmtargs, fmt); - vfprintf(stderr, fmt, fmtargs); - va_end(fmtargs); - fprintf(stderr, "\n"); - if (loc.start == -1) { - fprintf(stderr, "<unknown location>\n"); - return; - } - int startline = locfile_get_line(l, loc.start); - int offset = l->linemap[startline]; - fprintf(stderr, "%.*s\n", locfile_line_length(l, startline), l->data + offset); - fprintf(stderr, "%*s", loc.start - offset, ""); - for (int i = loc.start; - i < loc.end && i < offset + locfile_line_length(l, startline); - i++){ - fprintf(stderr, "^"); - } - fprintf(stderr, "\n"); -} +void locfile_locate(struct locfile* l, location loc, const char* fmt, ...); #endif @@ -1,3 +1,4 @@ +#include <stdlib.h> #include <stdio.h> #include <errno.h> #include <string.h> |